According to CoinMeta, Play-to-Earn ( P2E ) games are moving beyond traditional crypto-based rewards, with developers placing more emphasis on sustainable economies, enhanced gaming experiences, and long-term player retention. Since the crypto boom of 2021-2022, P2E games have received widespread attention. Although many P2E games have achieved some success in community building, most face sustainability challenges and rely on a continuous influx of new users. To address these challenges, developers have begun to focus on designing engaging games rather than relying solely on expensive NFT or quick profits. Taking RollerCoin as an example, this is a mining simulator that can be accessed through a browser, where players need to participate in mini-games and build virtual mines to earn rewards. As blockchain games continue to develop, regulation has gradually become an important consideration for developers, and legal issues related to digital currencies, token issuance, and in-game economies have also drawn increasing attention. While P2E games are primarily intended for entertainment, those that issue tokens or NFT face different legal considerations depending on the jurisdiction in which they operate.